Grade 12 Photosynthesis Worksheet

7/26/2019 Grade 12 Photosynthesis Worksheet

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JSS INTERNATIONAL SCHOOL, DUBAI

Grade : 12 Photosynthesis Worksheet -1

Date: 7/12/13

Section- A

a) Give one signicant di!erence "et#een the $o%%o#ing:

1) Stroma and Grana

2) Chlorophyll a and b

3) Pyrrole andphytol

4) Primary pigment and accessary pigment

5) carotenes and xanthophylls

6) Absorption spectrm and Action spectrm

!) Assimilatory po"er and #edcing po"er

$) %xcited state and Grond state

&) PS' and PS''

1() Cyclic and noncyclic photophosphorylation

11) C3 and C4 plants

12) P%P carboxylase and #*P carboxylase

13) Cal+in cycle and ,atch- slac. cycle

14) Photorespiration and Aerobic #espiration

15) p"ard and do"n"ard translocation

") &'(%ain Why/

1) All li0e on earth is bottled sns energy

2) Photosynthesis protects s 0rom harm0l ltra+iolet radiations o0 sn

3) Chlorophyll appears red in reected light and green in transmitted light


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4) Photosynthesis is considered as an oxidation-redction process

5) C4 plants are better adapted in tropical and desert areas

6) Photorespiration inter0ers "ith the sccess0l 0nctioning o0 ca+lin cycle

!) erricyanide is redced to 0errocyanide by illminated chloroplasts

$) Photosynthesis contines to occr "hen green plants are trans0erred 0rom light to

dar.

&) he process o0 Photorespiration is disad+antageos in C3 plants

1() Chlorophyll molecles are protected by carotenoids 0rom photoxiation

11) Carotenes appear red and yello" in color

12) #ed light is more e7ecti+e than ble light in the process o0 photosynthesis

13) %+en 8ar. reaction is a7ected by temperatres 9 :ight reaction is not a7ected

14) Chlorophyll a is the main pigment

15) C4 path"ay is more expensi+e than C3 path"ay

c) i%% in the "%anks/

1) ;;;;;;;;;;;; is the general limiting 0actor 0or photosynthesis

2) Path"ay o0 Co2 e9 Sorghm9 Sgarcane and other graminaceos plants are ;;;;;;;;;

5) 'n C3 plants9 the carbondioxide acceptor is ;;;;;;;;;;;;;;

6) %ach pigment has its o"n absorption ;;;;;;;;;;;;;;;

!) irst stable prodct dring C4 plants photosynthesis is ;;;;;;;;;;;;;;

$) he energy tili>ed in the synthesis o0 one molecle o0 glcose is ;;;;;;;;;;;;;

&) he nmber o0 light ?anta re?ired 0or e+oltion o0 one molecle o0 oxygen iscalled ;;;;;

1() #ed drop is drop in ;;;;;;;;;;;;;

11) #ed drop occrs in "a+e length o0 ;;;;;;;;;;;;;

12) %merson e7ect indicates the existence o0 ;;;;;;;;;;;;;;;


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13) he empirical 0ormla 0or chlorophyll a is ;;;;;;;;;;;;;

d) *a+e the $o%%o#ing/

1) A morphological strctre on the thyla.oid "hich embodies a photosynthetic nit

2) A special pigment in the photosynthetic pigment system that traps energy 0romthe har+esting

=olecles

3) A sdden 0all in the ?antm yield beyond the red region o0 the spectrm

4) 'nhibition o0 photosynthesis at higher light intensity

5) he mass mo+ement o0 @rganic componds throgh sie+e tbes

6) :ight energi>ed synthesis o0 carbohydrates in chloroplast

!) :ight energi>ed synthesis o0 AP

$) Compactly stac.ed pile o0 discoid thyla.oids

&) A 2( carbon alcohol tail lin.ed in porphyrin in chlorophyll molecles

1() A collecti+e term 0or carotenes and xanthophylls

11) he energy borne by a photon

12) he nmber o0 oxygen molecles prodced per ?antm o0 light absorbed

13) he cr+e depicting the ?antm yield at di7erent "a+elength o0 light

e) Give the +ost signicant $,nction o$ the $o%%o#ing:

1) pigments 2) Accessory pigment 3) #*P 4) #*'SC@ 5) Peroxysomes

$) State the "est kno#n contri",tion o$/

1) #ben and amen 2) %merson 3) Ban eil 4) ,ill 5) Cal+in and *enson 6) 8ec.er

!) ,atch and Slac. $) *lac. man &) =nch

g) &'(and the $o%%o#ing/

1) AP 2) A8P,2 3) PD 4) #*P 5) #*'SC@ 6) 8,AP !) PGA $) P%P &) A8P 1()

@AA

11) A=P 12) CA= 13) PA#


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Section-

a) Dene the $o%%o#ing:

1) Pyrrole ring 2) Phytol tail 3) primary pigment 4) accessary pigment 5) carotenoids

6) Phycobillins

!) orescence $) Photons &) Dantm 1() Dantosomes 11) Dantm re?irement

12) absorption

Spectrm 13) Action spectrm 14) Dantm yield 15) Achromatic light 16) #ed

dropE%mersons anatomy 12) Characteristics o0 C4 plants 13) C4 path"ay 14) 8i7erences

bet"een C3 and C4

plants 15) 8i7erences bet"een photo respiration and Aerobic respiration 16) CA=

path"ay

1!) *lac.mans principle o0 limiting 0acors 1$) #inging experiment 1&) =ass o"

hypothesis

2() 8i7erences bet"een C3 and C4 path "ays

C) 8ra" the 0ollo"ing/


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1) Chloroplast 2) ran> anatomy 3) on cyclic photophosphorylation o" chart 4)

Cal+in cycle

5) Photo respiration 6) C4 path "ay !) CA= path"ay $) =ass o" - diagram

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Grade 12 Photosynthesis Worksheet